如何禁用小部件

Question

我使用GWT编辑器框架进行数据绑定。我有下一个代码:

AAAView.java

public interface AAAView extends Editor<AAA> {
public interface Presenter {
}
public interface Driver extends SimpleBeanEditorDriver<AAA, AAAViewImpl> {
}
void setPresenter(Presenter presenter);
Driver initializeDriver();
Widget asWidget();

}

AAAViewImpl.java

public class AAAViewImpl extends Composite implements AAAView {
interface AAAViewImplUiBinder extends UiBinder<Widget, AAAViewImpl> {
}
private static AAAViewImplUiBinder ourUiBinder = GWT.create(AAAViewImplUiBinder.class);
private Presenter presenter;
@UiField
ValueBoxEditorDecorator<String> firstName;
public AAAViewImpl() {
    Widget rootElement = ourUiBinder.createAndBindUi(this);
    initWidget(rootElement);
}
@Override
public void setPresenter(Presenter presenter) {
    this.presenter = presenter;
}

@Override
public Driver initializeDriver() {
    Driver driver = GWT.create(Driver.class);
    driver.initialize(this);
    return driver;
}

AAAViewImpl.ui.xml

<e:ValueBoxEditorDecorator ui:field="firstName">
<e:valuebox>
  <g:TextBox maxLength="16" width="100%"/>
  </e:valuebox>
</e:ValueBoxEditorDecorator>

如何在运行时禁用/启用firstName文本框?或者如何访问ValueBoxEditorDecorator对象的内部文本框?有人知道怎么解决这个问题吗?

Answer 1

不是在ValueBoxEditorDecorator上设置ui:field属性，而是在内部TextBox上设置它。然后你可以使用:

来禁用文本框

firstName.setEnabled(false);